量子点放大器的电与光泵浦

Proceedings 27th European Conference on Optical Communication (Cat. No.01TH8551) Pub Date : 2001-09-30 DOI:10.1109/ECOC.2001.989419

T. W. Berg, S. Bischoff, J. Mørk

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引用次数: 6

摘要

研究了10 GHz、40 GHz和160 GHz信号下抽运机制对量子点放大器动力学特性的影响。预测了在湿层(WL)中光泵浦的快速响应。快速弛豫和捕获时间的结合以及WL中载流子储存库的存在为量子点器件中的超快增益恢复提供了可能性。光对电泵浦的优点在于它减少了慢波的瓶颈效应。因此，光泵浦可以显著改善量子点器件的动力学特性。

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Electrical versus optical pumping of quantum dot amplifiers

The influence of the pumping mechanism for the dynamical properties of quantum dot amplifiers is investigated for 10, 40 and 160 GHz signals. A fast response is predicted in the case of optical pumping in the wetting layer (WL). The combination of fast relaxation and capture times and the presence of a reservoir of carriers in the WL opens up for the possibility of ultrafast gain recovery in QD devices. The strength of optical contra electrical pumping is that it reduces the bottleneck effect of a slow WL. Optical pumping thus allows significant improvement of the dynamical properties of QD devices.

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Proceedings 27th European Conference on Optical Communication (Cat. No.01TH8551)

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